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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef UNIQUE_FD_H
#define UNIQUE_FD_H
#include <stdio.h>
#include <memory>
class unique_fd {
public:
unique_fd(int fd) : fd_(fd) { }
unique_fd(unique_fd&& uf) {
fd_ = uf.fd_;
uf.fd_ = -1;
}
~unique_fd() {
if (fd_ != -1) {
close(fd_);
}
}
int get() {
return fd_;
}
// Movable.
unique_fd& operator=(unique_fd&& uf) {
fd_ = uf.fd_;
uf.fd_ = -1;
return *this;
}
explicit operator bool() const {
return fd_ != -1;
}
private:
int fd_;
// Non-copyable.
unique_fd(const unique_fd&) = delete;
unique_fd& operator=(const unique_fd&) = delete;
};
#endif // UNIQUE_FD_H
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